MW
Mary Watson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Eau-Claire-County, Wisconsin
Our Model Tree links this Mary Watson across the 1920, 1930 and 1940 US Censuses in Eau-Claire-County, Wisconsin (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Female
Spouse
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Eau-Claire-County, Wisconsin |
| Surname | Watson |
| Given Name | Mary K. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire City |
| 1935 Residence (County) | Eau Claire |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Eau Claire City |
| Est. Birth Year | ~1887 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Charles Watson | Head | — | 56 | ~1884 |
| Mary Watson | Other | — | 84 | ~1856 |
| Clinton Watson | Son | — | 24 | ~1916 |
| Gerald Watson | Son | — | 17 | ~1923 |
| Mary Watson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Eau Claire, …
Spouse, age 32
Eau Claire, Wisconsin · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Eau Claire, …
Spouse, age 42
Eau Claire, Wisconsin · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watson |
| Given Name | Mary H |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 20 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Eau-Claire-County, Wisconsin
Spouse, age 53
Eau-Claire-County, Wisconsin · implied b. ~1887 — 5 household members
| Surname | Watson |
| Given Name | Mary K. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Eau Claire City |
| 1935 Residence (County) | Eau Claire |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Watson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Watson
Spouse · 1940 · age 53 · b. ~1887 · Wisconsin
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Eau-Claire-County, Wisconsin
Open full size
1940 US Federal Census — Eau-Claire-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04477-00321)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joan Schieffer | 6 | Daughter | — | Wisconsin |
| 2 | Sever Ophum|Ophun | 46 | Head | Broker | Wisconsin |
| 3 | Carrie Ophum|Ophun | 46 | Wife | — | Wisconsin |
| 4 | Marjorie Ophum|Ophun | 16 | Daughter | — | Wisconsin |
| 5 | Martha Fleming | 77 | Lodger | — | Sweden |
| 6 | Donald Devore | 29 | Head | Grinder | Wisconsin |
| 7 | Venetta Devore | 25 | Wife | — | Wisconsin |
| 8 | Lucille Devore | 5 | Daughter | — | Wisconsin |
| 9 | Marcella Devore | 4 | Daughter | — | Wisconsin |
| 10 | Elvie Ellingson | 35 | Head | Millman | Wisconsin |
| 11 | Violet Ellingson | 25 | Wife | Bead Machine | Wisconsin |
| 12 | Alvin J. Strauch | 32 | Head | Bagger | Wisconsin |
| 13 | Rosa L. Strauch | 25 | Wife | — | Wisconsin |
| 14 | Norman Mckay | 25 | Head | Tire Builder | Wisconsin |
| 15 | Averil Mckay | 22 | Wife | — | Wisconsin |
| 16 | Ronald Mckay | 1 | Son | — | Wisconsin |
| 17 | Nickolas Harris | 39 | Head | Milk Salesman | Wisconsin |
| 18 | Margaret Harris | 32 | Wife | — | Wisconsin |
| 19 | Lynette Harris | 11 | Daughter | — | Wisconsin |
| 20 | Charles Watson | 56 | Head | Rip Saw | Wisconsin |
| 21 | Mary K. Watson THIS PERSON | 53 | Wife | — | Wisconsin |
| 22 | Clinton Watson | 24 | Son | Grinder | Wisconsin |
| 23 | Gerald Watson | 17 | Son | — | Wisconsin |
| 24 | Mary Watson | 84 | Mother | — | New York |
| 25 | John Baumgartner | 38 | Head | Salesman | Iowa |
| 26 | Hallie Baumgartner | 37 | Wife | — | Wisconsin |
| 27 | James Baumgartner | 2 | Son | — | Wisconsin |
| 28 | Arthur Lund | 40 | Head | Heater Tender | Wisconsin |
| 29 | Ella Lund | 36 | Wife | — | Wisconsin |
| 30 | Marjorie Lund | 17 | Daughter | — | Wisconsin |
| 31 | Elaine Lund | 12 | Daughter | — | Wisconsin |
| 32 | Ewald Mueller | 34 | Head | Service Man | Wisconsin |
| 33 | Edna Mueller | 30 | Wife | — | Wisconsin |
| 34 | Albert Mueller | 10 | Son | — | Wisconsin |
| 35 | James Mueller | 2 | Son | — | Wisconsin |
| 36 | Russel Loomis | 32 | Head | Tread-Man | Wisconsin |
| 37 | Linda Loomis | 32 | Wife | — | Wisconsin |
| 38 | Rosella Loomis | 14 | Daughter | — | Wisconsin |
| 39 | Elaine Loomis | 11 | Daughter | — | Wisconsin |
| 40 | Richard Loomis | 10 | Son | — | Wisconsin |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)